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<TITLE>JavaScript Source Code 3000:  Calculators:  World Population</TITLE>
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<META NAME="date" CONTENT="2000-09-09">
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<META NAME="author" CONTENT="Ronnie Moore, Editor">
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<META NAME="description" CONTENT="Estimates the current world population based on US census data and the world growth rate.  Not exactly precise, but neat anyways.">
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<FONT COLOR="#006666"><b>World Population</b></font></font>
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<!-- Description --><!--content_start-->
Estimates the current world population based on US census data and the world growth rate.  Not exactly precise, but neat anyways.
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<!-- Demonstration -->
<SCRIPT LANGUAGE="JavaScript">
<!-- Original:  Ronnie Moore, Editor -->




<!-- Begin
var worldpop = 6080141683;
// US Census estimate on 7/1/00
m = 7
d = 1
yr = 2000

var montharray=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
var today=new Date();
var todayy=today.getYear();

// Y2K Fix by Isaac Powell
// http://onyx.idbsu.edu/~ipowell

if ((navigator.appName == "Microsoft Internet Explorer") && (todayy < 2000))
todayy="19" + todayy;
if (navigator.appName == "Netscape")
todayy = 1900 + todayy;
function outputComma(number) { // (c) irt.org
number = '' + number;
if (number.length > 3) {
var mod = number.length%3;
var output = (mod > 0 ? (number.substring(0,mod)) : '');
for (i=0 ; i < Math.floor(number.length/3) ; i++) {
if ((mod ==0) && (i ==0))
output += number.substring(mod+3*i,mod+3*i+3);
else
output += ',' + number.substring(mod+3*i,mod+3*i+3);
}
return (output);
}
else return number;
}
var todaym = today.getMonth();
var todayd = today.getDate();
var todaystring = new Date();
var paststring = montharray[m-1]+" "+d+", "+yr;
growth = Math.floor(2.6*(Math.round((Date.parse(todaystring)-Date.parse(paststring))/(1000))*1));
document.write("World Population is estimated to be: <b>" + outputComma(worldpop+growth) + "</b>");
//  End -->
</script>
<p>
<center><font color=red>(Refresh the page to see an updated world population amount.)</font></center>
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<tr><td BGCOLOR=yellow><font FACE="helvetica,arial,geneva"><b>JavaScript Source Code 3000:  Calculators:  World Population</b>
<p>Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Apple-s).  The script is yours!!!
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<form NAME="copy">

<DIV align="center">
<input type=button value="Highlight All" onClick="javascript:this.form.txt.focus();this.form.txt.select();">&nbsp;&nbsp;&nbsp;&nbsp;
<INPUT TYPE="text" NAME="total" VALUE="Script Size:  1.71 KB" size=24>
</DIV>

<textarea NAME="txt" ROWS=20 COLS=75 WRAP=VIRTUAL>

&lt;!-- ONE STEP TO INSTALL WORLD POPULATION:

  1.  Copy the coding into the BODY of your HTML document  --&gt;

&lt;!-- STEP ONE: Paste this code into the BODY of your HTML document  --&gt;

&lt;BODY&gt;

&lt;SCRIPT LANGUAGE="JavaScript"&gt;
&lt;!-- Original:  Ronnie Moore, Editor --&gt;

&lt;! &gt;
&lt;! &gt;

&lt;!-- Begin
var worldpop = 6080141683;
// US Census estimate on 7/1/00
m = 7
d = 1
yr = 2000

var montharray=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
var today=new Date();
var todayy=today.getYear();

// Y2K Fix by Isaac Powell
// http://onyx.idbsu.edu/~ipowell

if ((navigator.appName == "Microsoft Internet Explorer") && (todayy &lt; 2000))
todayy="19" + todayy;
if (navigator.appName == "Netscape")
todayy = 1900 + todayy;
function outputComma(number) { // (c) irt.org
number = '' + number;
if (number.length &gt; 3) {
var mod = number.length%3;
var output = (mod &gt; 0 ? (number.substring(0,mod)) : '');
for (i=0 ; i &lt; Math.floor(number.length/3) ; i++) {
if ((mod ==0) && (i ==0))
output += number.substring(mod+3*i,mod+3*i+3);
else
output += ',' + number.substring(mod+3*i,mod+3*i+3);
}
return (output);
}
else return number;
}
var todaym = today.getMonth();
var todayd = today.getDate();
var todaystring = new Date();
var paststring = montharray[m-1]+" "+d+", "+yr;
growth = Math.floor(2.6*(Math.round((Date.parse(todaystring)-Date.parse(paststring))/(1000))*1));
document.write("World Population is estimated to be: &lt;b&gt;" + outputComma(worldpop+growth) + "&lt;/b&gt;");
//  End --&gt;
&lt;/script&gt;

 

&lt;!-- Script Size:  1.71 KB --&gt;</textarea><br><font FACE="helvetica,arial,geneva"></font></td></tr>

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